Retro POP Handset for iPad 2, iPad, iPhone 4 4G 3GS 3G Retro POP Handset for iPad 2, iPad, iPhone 4 4G 3GS 3G Noise-reducing technology for a crisp and polished sound Luxurious soft-touch finish for ultimate comfort and feel Eliminates up to 99 percentage of the radiation absorbed compared to a direct use of mobile phones One touch button for convenient pick-up/hang-up directly from the handset (not all mobile phone support function)